#!/usr/bin/env python

# encoding: utf-8

# repos controller for pylons

# Copyright (C) 2009-2010 Marcin Kuzminski <marcin@python-works.com>

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation; version 2

# of the License or (at your opinion) any later version of the license.

# 

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# 

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

# MA  02110-1301, USA.

"""

Created on April 7, 2010

admin controller for pylons

@author: marcink

"""

from operator import itemgetter

from pylons import request, response, session, tmpl_context as c, url, \

    app_globals as g

from pylons.controllers.util import abort, redirect

from pylons.i18n.translation import _

from pylons_app.lib import helpers as h

from pylons_app.lib.auth import LoginRequired

from pylons_app.lib.base import BaseController, render

from pylons_app.lib.utils import invalidate_cache

from pylons_app.model.repo_model import RepoModel

from pylons_app.model.hg_model import HgModel

from pylons_app.model.forms import RepoForm

from pylons_app.model.meta import Session

from datetime import datetime

import formencode

from formencode import htmlfill

import logging

import os

import shutil

log = logging.getLogger(__name__)

class ReposController(BaseController):

    """REST Controller styled on the Atom Publishing Protocol"""

    # To properly map this controller, ensure your config/routing.py

    # file has a resource setup:

    #     map.resource('repo', 'repos')

    @LoginRequired()

    def __before__(self):

        c.admin_user = session.get('admin_user')

        c.admin_username = session.get('admin_username')

        super(ReposController, self).__before__()

    def index(self, format='html'):

        """GET /repos: All items in the collection"""

        # url('repos')

        cached_repo_list = HgModel().get_repos()

        c.repos_list = sorted(cached_repo_list, key=itemgetter('name_sort'))

        return render('admin/repos/repos.html')

    def create(self):

        """POST /repos: Create a new item"""

        # url('repos')

        repo_model = RepoModel()

        _form = RepoForm()()

        try:

            form_result = _form.to_python(dict(request.POST))

            repo_model.create(form_result, c.hg_app_user)

            invalidate_cache('cached_repo_list')

            h.flash(_('created repository %s') % form_result['repo_name'],

                    category='success')

        except formencode.Invalid as errors:

            c.form_errors = errors.error_dict

            c.new_repo = errors.value['repo_name']

            return htmlfill.render(

                 render('admin/repos/repo_add.html'),

                defaults=errors.value,

                encoding="UTF-8")        

        except Exception:

            h.flash(_('error occured during creation of repository %s') \

                    % form_result['repo_name'], category='error')

        return redirect('repos')

    def new(self, format='html'):

        """GET /repos/new: Form to create a new item"""

        new_repo = request.GET.get('repo', '')

        c.new_repo = h.repo_name_slug(new_repo)

        return render('admin/repos/repo_add.html')

    def update(self, id):

        """PUT /repos/id: Update an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="PUT" />

        # Or using helpers:

        #    h.form(url('repo', id=ID),

        #           method='put')

        # url('repo', id=ID)

        repo_model = RepoModel()

        _form = RepoForm(edit=True)()

        try:

            form_result = _form.to_python(dict(request.POST))

            repo_model.update(id, form_result)

            invalidate_cache('cached_repo_list')

            h.flash(_('Repository updated succesfully'), category='success')

        except formencode.Invalid as errors:

            c.repo_info = repo_model.get(id)

            c.form_errors = errors.error_dict

            return htmlfill.render(

                 render('admin/repos/repo_edit.html'),

                defaults=errors.value,

                encoding="UTF-8")

        except Exception:

            h.flash(_('error occured during update of repository %s') \

                    % form_result['repo_name'], category='error')

        return redirect(url('repos'))

    def delete(self, id):

        """DELETE /repos/id: Delete an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="DELETE" />

        # Or using helpers:

        #    h.form(url('repo', id=ID),

        #           method='delete')

        # url('repo', id=ID)

        repo_model = RepoModel()

        repo = repo_model.get(id)

        if not repo:

            h.flash(_('%s repository is not mapped to db perhaps' 

                      ' in order to rescan repositories') % id, category='error')

            return redirect(url('repos'))

        try:

            repo_model.delete(repo)            

            invalidate_cache('cached_repo_list')

            h.flash(_('deleted repository %s') % id, category='success')

        except Exception:

            h.flash(_('An error occured during deletion of %s') % id,

                    category='error')

        return redirect(url('repos'))

    def show(self, id, format='html'):

        """GET /repos/id: Show a specific item"""

        # url('repo', id=ID)

    def edit(self, id, format='html'):

        """GET /repos/id/edit: Form to edit an existing item"""

        # url('edit_repo', id=ID)

        repo_model = RepoModel()

        defaults = c.repo_info.__dict__

        defaults.update({'user':c.repo_info.user.username})        

        return htmlfill.render(

            render('admin/repos/repo_edit.html'),

            defaults=defaults,

            encoding="UTF-8",

            force_defaults=False

        )